Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.

The splashing of water drops on a soil surface is the first step of water erosion. There have been many investigations into splashing-most are based on recording and analysing images taken with high-speed cameras, or measuring the mass of the soil moved by splashing. Here, we present a new aspect of...

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Main Authors: Magdalena Ryżak, Andrzej Bieganowski, Tomasz Korbiel
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4936686?pdf=render
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author Magdalena Ryżak
Andrzej Bieganowski
Tomasz Korbiel
author_facet Magdalena Ryżak
Andrzej Bieganowski
Tomasz Korbiel
author_sort Magdalena Ryżak
collection DOAJ
description The splashing of water drops on a soil surface is the first step of water erosion. There have been many investigations into splashing-most are based on recording and analysing images taken with high-speed cameras, or measuring the mass of the soil moved by splashing. Here, we present a new aspect of the splash phenomenon's characterization the measurement of the sound pressure level and the sound energy of the wave that propagates in the air. The measurements were carried out for 10 consecutive water drop impacts on the soil surface. Three soils were tested (Endogleyic Umbrisol, Fluvic Endogleyic Cambisol and Haplic Chernozem) with four initial moisture levels (pressure heads: 0.1 kPa, 1 kPa, 3.16 kPa and 16 kPa). We found that the values of the sound pressure and sound wave energy were dependent on the particle size distribution of the soil, less dependent on the initial pressure head, and practically the same for subsequent water drops (from the first to the tenth drop). The highest sound pressure level (and the greatest variability) was for Endogleyic Umbrisol, which had the highest sand fraction content. The sound pressure for this soil increased from 29 dB to 42 dB with the next incidence of drops falling on the sample The smallest (and the lowest variability) was for Fluvic Endogleyic Cambisol which had the highest clay fraction. For all experiments the sound pressure level ranged from ~27 to ~42 dB and the energy emitted in the form of sound waves was within the range of 0.14 μJ to 5.26 μJ. This was from 0.03 to 1.07% of the energy of the incident drops.
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spelling doaj.art-24929db9068c419ca9f24ef1869fc1732022-12-22T00:11:20ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01117e015847210.1371/journal.pone.0158472Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.Magdalena RyżakAndrzej BieganowskiTomasz KorbielThe splashing of water drops on a soil surface is the first step of water erosion. There have been many investigations into splashing-most are based on recording and analysing images taken with high-speed cameras, or measuring the mass of the soil moved by splashing. Here, we present a new aspect of the splash phenomenon's characterization the measurement of the sound pressure level and the sound energy of the wave that propagates in the air. The measurements were carried out for 10 consecutive water drop impacts on the soil surface. Three soils were tested (Endogleyic Umbrisol, Fluvic Endogleyic Cambisol and Haplic Chernozem) with four initial moisture levels (pressure heads: 0.1 kPa, 1 kPa, 3.16 kPa and 16 kPa). We found that the values of the sound pressure and sound wave energy were dependent on the particle size distribution of the soil, less dependent on the initial pressure head, and practically the same for subsequent water drops (from the first to the tenth drop). The highest sound pressure level (and the greatest variability) was for Endogleyic Umbrisol, which had the highest sand fraction content. The sound pressure for this soil increased from 29 dB to 42 dB with the next incidence of drops falling on the sample The smallest (and the lowest variability) was for Fluvic Endogleyic Cambisol which had the highest clay fraction. For all experiments the sound pressure level ranged from ~27 to ~42 dB and the energy emitted in the form of sound waves was within the range of 0.14 μJ to 5.26 μJ. This was from 0.03 to 1.07% of the energy of the incident drops.http://europepmc.org/articles/PMC4936686?pdf=render
spellingShingle Magdalena Ryżak
Andrzej Bieganowski
Tomasz Korbiel
Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.
PLoS ONE
title Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.
title_full Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.
title_fullStr Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.
title_full_unstemmed Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.
title_short Sound Wave Energy Resulting from the Impact of Water Drops on the Soil Surface.
title_sort sound wave energy resulting from the impact of water drops on the soil surface
url http://europepmc.org/articles/PMC4936686?pdf=render
work_keys_str_mv AT magdalenaryzak soundwaveenergyresultingfromtheimpactofwaterdropsonthesoilsurface
AT andrzejbieganowski soundwaveenergyresultingfromtheimpactofwaterdropsonthesoilsurface
AT tomaszkorbiel soundwaveenergyresultingfromtheimpactofwaterdropsonthesoilsurface